Akershus Fortress

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Akershus Fortress, also known as Akershus Castle, is a medieval fortress in Oslo, Norway. It sits on the edge of the Oslofjord and was built in the late 1290s to defend the capital and provide a royal residence.

For centuries the fortress was the center of Akershus county and played a key military role. It has also served as a base for the army and as a prison. Today, parts of Akershus are used by the government, including the prime minister’s office in a nearby building. The site is open to the public every day from early morning to evening. Visitors can explore the castle, the Norwegian Armed Forces Museum, and Norway’s Resistance Museum. The King’s Guard protects the fortress.

Construction began in the late 1290s under King Haakon V, following a 1287 attack on Oslo. The fortress was built to strengthen the city’s defenses, and it is first mentioned in records around 1300. Akershus faced many sieges, especially from Swedish forces, but it never fell to a foreign army during the medieval period. Notable sieges occurred in 1308, 1449–50, 1502, 1523, 1531–32, and 1567. The fortress did surrender to Nazi Germany in 1940 during World War II after Norway evacuated Oslo; it was liberated in 1945.

Akershus also played a role in royal life. After the castle was completed, Haakon V used it as a residence, contributing to Oslo becoming Norway’s capital. Several medieval royals lived there, and Olaf II was born at the fortress in 1370. After a major fire in 1624, the city was rebuilt closer to Akershus and renamed Christiania (now Oslo). The fortress was rebuilt in a Renaissance style with Italian-inspired features and continued to serve as a royal residence and fortress.

The fortress also housed prisoners, including famous early Norwegians and socialists. Today, it remains a historic site and museum complex. It’s a popular place to visit, and its Royal Mausoleum is the resting place of several Norwegian kings and queens.

Akershus has even left a mark in popular culture. Disney’s Epcot park in Florida recreates part of the fortress in the Norway Pavilion, including a restaurant inspired by its royal history.